www.bosfiltry.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:48:9f:00:47:63:bb:4d:0d:62:20:e8:bd:2e:12:d8:78:78 was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.bosfiltry.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:48:9f:00:47:63:bb:4d:0d:62:20:e8:bd:2e:12:d8:78:78
Serial Number (int): 286048536912870747728532763491321867958392
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4c:9d:98:33:81:39:cc:08:da:0d:2a:64:e3:27:fe:7b:99:db:98:54
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fc:3e:2e:16:70:86:62:2d:9e:7c:4a:e0:cb:a6:17:e9:71:20:14:6d
Fingerprint (sha256): e5:e2:49:d3:83:72:3f:1a:9e:2b:fa:9c:8c:ed:d4:4c:cc:4b:ce:72:9e:8c:a5:9c:a4:c0:bd:59:f0:89:35:77

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.bosfiltry.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.bosfiltry.cz

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.bosfiltry.cz

Other certificates including the domain name bosfiltry.cz

(limited to 100 certificates)
shop.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz
www.bosfiltry.cz
shop.bosfiltry.cz
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www.bosfiltry.cz
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www.bosfiltry.cz
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shop.bosfiltry.cz
shop.bosfiltry.cz
shop.bosfiltry.cz

Certificate

The complete raw certificate details for www.bosfiltry.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1Pv395nC3yIfQVmIjIHM
7VWFHwqwuMuyiff4UNk7mkhwpwP7YlMadCxf7SoMUK6vZR+oRaA7iPJzD9Rj+JfO
EF2YVxKoss68yeUPTA0kMt2KfEdCfc5dGvRaamM4hBlDFfuPtqFoeJF74t7L7L1A
Gr7Yh4w5GryvCwj3naBcGruUZicT48RsUXFyNZhngO5xSSQLZ333kFROXRc1eWyg
Iw7WDDmO21J8jZDUCRSJriOp11T0QVU/EnLwK82ApyNZZSVC87XzmNDaSf1djZ0X
n3I1JdSHbi8vi8J2V1h2IWLJiv4FILorLccysopjhhlRluvEHRkJDeftwZTapMbn
3wIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 286048536912870747728532763491321867958392
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-23 08:58:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 08:58:11 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.bosfiltry.cz'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26886771011105923394642459372924921955528453029410735419912353089861081366265326288320989405667553567870016629924255002162724569785687086093914497409828297475036169639718971577973962690272045288660934053427285029677392257371605484168979091503648960114416462006579534753316208646300674488428102484027098729022862390289400754722828360335656267723394403448128376703734524542720877206273682534108723679022511087994929398354387642804511169146696508781795143176888186568449316097487772016671779048843700744091225712054256835510717862861136351512681128778730778877009514821460613856403802774240406364042960634979782836545503
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							4c9d98338139cc08da0d2a64e327fe7b99db9854
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bosfiltry.cz'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f323153d90000040300483046022100ac9c06723967083ae12239f9dba2a43830eb14eaf2514e3db738ca09b0301600022100b7df1f05eac483cf3d810638cc69b86ae25903207dc26f4b1dd38d75c3dc9dbe007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f323153d2000004030046304402204e730df8c81553a891589d3aefe288fc649f90c95d5f796ea0e2087ea85b234402205cfca36ca32e7374692e362f18cf3d434e4deccec5422eff147de8f695e9478d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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